X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fmodex16.c;h=cb5102c8077c32d55f79c065f1bcb896cc386dbb;hb=73a484ef8bbdbcb82bde5580b77001e7c54265f8;hp=eaf9966c805f047ddb35804d6967d2161d086277;hpb=bba7fa83186d755c585791acec1db6c6d58164db;p=16.git

diff --git a/src/lib/modex16.c b/src/lib/modex16.c
index eaf9966c..cb5102c8 100755
--- a/src/lib/modex16.c
+++ b/src/lib/modex16.c
@@ -83,6 +83,7 @@ modexEnter() {
         0xea10,         /* v sync start */
         0xac11,         /* v sync end and protect cr0-cr7 */
         0xdf12,         /* vertical displayed */
+//		0x2013,		/* offset/logical width */
         0x0014,         /* turn off dword mode */
         0xe715,         /* v blank start */
         0x0616,         /* v blank end */
@@ -139,7 +140,9 @@ modexDefaultPage() {
     page.dy = 0;
     page.width = SCREEN_WIDTH;
     page.height = SCREEN_HEIGHT;
-        page.id = 0;
+	page.tw = page.width/TILEWH;
+	page.th = page.height/TILEWH;
+	page.id = 0;
 
     return page;
 }
@@ -151,30 +154,35 @@ page_t
 modexNextPage(page_t *p) {
     page_t result;
 
-    result.data = p->data + (p->width/4)*p->height;  /* compute the offset */
+    result.data = p->data + (p->width/4)*p->height;
     result.dx = 0;
     result.dy = 0;
     result.width = p->width;
     result.height = p->height;
-        result.id = p->id+1;
+	result.tw = p->width/TILEWH;
+	result.th = p->height/TILEWH;
+	result.id = p->id+1;
 
-    return result;
+	return result;
+// 	return modexNextPageFlexibleSize(&p, p->width, p->height);
 }
 
 //next page with defined dimentions~
 page_t
-modexNextPage0(page_t *p, word x, word y)
+modexNextPageFlexibleSize(page_t *p, word x, word y)
 {
-        page_t result;
-
-        result.data = p->data + (p->width/4)*p->height;  /* compute the offset */
-        result.dx = 0;
-        result.dy = 0;
-        result.width = x;
-        result.height = y;
-        result.id = p->id+1;
-
-    return result;
+	page_t result;
+
+	result.data = p->data + (p->width/4)*p->height;  /* compute the offset */
+	result.dx = 0;
+	result.dy = 0;
+	result.width = x;
+	result.height = y;
+	result.tw = p->width/TILEWH;
+	result.th = p->height/TILEWH;
+	result.id = p->id+1;
+
+	return result;
 }
 
 
@@ -399,6 +407,72 @@ modexDrawBmpRegion(page_t *page, int x, int y,
     }
 }
 
+void
+modex_sparky4_DrawBmpRegion(page_t *page, int x, int y,
+                   int rx, int ry, int rw, int rh, bitmap_t *bmp) {
+    word poffset = (word) page->data  + y*(page->width/4) + x/4;
+    byte far *data = bmp->data;//+bmp->offset;
+    word bmpOffset = (word) data + ry * bmp->width + rx;
+    word width = rw;
+    word height = rh;
+    byte plane = 1 << ((byte) x & 0x03);
+    word scanCount = width/4 + (width%4 ? 1 :0);
+    word nextPageRow = page->width/4 - scanCount;
+    word nextBmpRow = (word) bmp->width - width;
+    word rowCounter;
+    byte planeCounter = 4;
+
+/*	printf("bmp->data=%Fp\n",bmp->data);
+	printf("*bmp->data=%Fp\n",*(bmp->data));
+	printf("&bmp->data=%Fp\n",&(bmp->data));*/
+
+        //code is a bit slow here
+    __asm {
+                MOV AX, SCREEN_SEG      ; go to the VGA memory
+                MOV ES, AX
+
+                MOV DX, SC_INDEX        ; point at the map mask register
+                MOV AL, MAP_MASK        ;
+                OUT DX, AL              ;
+
+        PLANE_LOOP:
+                MOV DX, SC_DATA         ; select the current plane
+                MOV AL, plane           ;
+                OUT DX, AL              ;
+
+                ;-- begin plane painting
+                MOV AX, height          ; start the row counter
+                MOV rowCounter, AX      ;
+                MOV DI, poffset         ; go to the first pixel
+                MOV SI, bmpOffset       ; go to the bmp pixel
+        ROW_LOOP:
+                MOV CX, width           ; count the columns
+        SCAN_LOOP:
+                MOVSB                   ; copy the pixel
+                SUB CX, 3               ; we skip the next 3
+                ADD SI, 3               ; skip the bmp pixels
+                LOOP SCAN_LOOP          ; finish the scan
+
+                MOV AX, nextPageRow
+                ADD DI, AX              ; go to the next row on screen
+                MOV AX, nextBmpRow
+                ADD SI, AX              ; go to the next row on bmp
+
+                DEC rowCounter
+                JNZ ROW_LOOP            ; do all the rows
+                ;-- end plane painting
+
+                MOV AL, plane           ; advance to the next plane
+                SHL AL, 1               ;
+                AND AL, 0x0f            ; mask the plane properly
+                MOV plane, AL           ; store the plane
+
+                INC bmpOffset           ; start bmp at the right spot
+
+                DEC planeCounter
+                JNZ PLANE_LOOP          ; do all 4 planes
+    }
+}
 
 void
 modexDrawPlanarBuf(page_t *page, int x, int y, planar_buf_t *bmp) {